Improvement in machines for making eaves-troughs



W. W. LAING.

Machine for Making vEaves-Troughs. N0. 164,567.

Patented June 15, I875.

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UNITED STATEs PATENT ()FFICE.

WALTER W. LAING, OF HOLLY, MICHIGAN.

IMPROVEMENT IN MACHINES FOR MAKING EAVES-TROUGHS.

Specification forming part of Letters Patent No. 164,567, dated June 15,1875; application filed April 27, 1875.

To all whom it may concern:

Be it known that I, WALTER W. LAING, of Holly, in the county of Oaklandand State of Michigan, have invented an Improved Machine for FormingEaves-Trough, of which the following is a specification:

My invention has for its object to furnish a machine for tinners use, bymeans of which sheetmetal eaves troughs can be quickly formed ofanylength or shape, either from long strips in a single piece, or fromstrips made by soldering sheets together.

The invention consists in the combination, with a pair of shaping-rollsgeared together, of one or more pairs of rolls for turning the edges,and a block and channel-guide for keeping the trough in shape whilepassing through the machine.

Figure 1 is a perspective view. Fig. 2 is a vertical transverse sectionat a: 00. Fig. 3 is a cross'section at y 3 Fig. 4 is a cross-section atz z.

In the drawing, A represents the bed-plate of the machine, which can bebolted to a bench, or to a base-board, as shown. B B are two pairs ofsuperposed boxes, up through whose hollow ends, and the corners of acapplate, 0, bolts a, rising from the corners of the bed-plate, pass. Acollar or sleeve, be, is interposed between the caps of the top boxes Band the cap-plate. A nut, c, at the top of each bolt, binds the wholetogether. Through the lower boxes a shaft, D, is journaled, with acrank, D, on one end. Through the upper pair of boxes a shaft, E, isjournaled. These shafts are geared together by spur-gears F G. ()n theend of the shaft D a concave roll, H, is secured by a nut. On the end ofthe shaft E a round-edged roll, I, is in like manner secured. Theserolls,.of the section shown, are intended to form half-round gutter oreaves troughs, by passing sheet-metal strips into them while they arerotated by the crank and gearing.

It is evident, however, that rolls of any other section may besubstituted therefor which will shape the strip to any form desired.

The caps of the upper boxes are arranged to slide upon the sleeves b,and they may be adjusted to lift for any thickness of metal passingbetween the rolls by temper-screws J J tapped through the cap-plate. Thecap nearest the top-roll has a strong leaf-spring, d, interposed betweenit and the temper-screw, which spring will yield to an increase ofpressure, as when a seam is passing between the rolls. K is a concavetrough erected on the bed-plate in line with and on the plane of the topof the lower roll, and to its sides two transverse yokes, L L, arebolted. K is a semi-cylindrical f'ormingblock supported in the trough Kby two bolts tapped through the tops of the yokes. By means of thescrews it may be adjusted so as to permit the eavestrough to passbetween it and the formingtrough below, while it will also keep theeavestrough from buckling out of shape. The edges of the concaved stripproject vertically above those of the block until the yoke L is reached,when they pass under a roller, 0, mounted on an inclined stud, f,projecting from the side of said yoke, which rollers turn the edgesinwardly, as seen in Fig. 3. c are similar rollers, in like mannerjournaled on studs f projecting horizontally inward from the sides ofthe yoke L, which rollers turn the flanges flat down upon the block asthey pass under said yoke.

The block and its trough must necessarily be of the same section as therolls, and the rollers e 0 may be adjusted to turn the flanges inwardlyor outwardly, as desired.

As sheet-tin is procurable in strips or rolls of any length desired, upto two hundred feet in length, it is practicable with this machine tomakea seamless eaves-trough of any length required as fast as it can berun through the machine. Such a trough will cost much less than a seamedtrough, and will be much more durable.

What [claim as my invention is- In a machine for formin g eaves-trough,substantially as herein described, the combination of the forming-rollsgeared together, the guide-trough and block, and one or more pairs ofrollers for flanging the edges of the eavestrough, substantially asdescribed.

WALTER W. LAING. Witnesses:

M. M. BURNHAM, DELos K. BURNHAM.

